Section 28Pensions of Government officials serving boards

if his services are wholly lent to it, contribute to his pension or gratuity and leave-allowances in accordance with the rules of the [Civil Service Regulations] for the time being in force ; and

if he devotes only a part of his time to the performance of duties in behalf of the board, contribute to his pension or gratuity and leave-allowances in such proportion as may be determined by the Government.